Chapter 9 — ALTERATIONS—LEVEL 3
904 Fire Protection — 2025 California Existing Building Code
California Existing Building Code (Title 24, Part 10) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
During a remodel, do I need sprinklers and fire alarms?
Provide sprinklers and fire alarm/detection whenever the new-construction standards would require them. If an existing alarm is taken out of service, follow impairment procedures and ensure site fire protection during construction.
Cite as: 2025 California Existing Building Code (Title 24, Part 10) § 904 · Effective January 1, 2026 · Official source: Building Standards Commission
904.1 Automatic sprinkler systems.¶
An automatic sprinkler system shall be provided in accordance with Section 903 of the California Building and California Fire Codes.
904.2 Fire alarm and detection systems.¶
Fire alarm and detection shall be provided in accordance with Section 907 of the California Building Code as required for new construction in accordance with California Fire Code Sections 907 and 1103.7.
904.2.1 Systems out of service. Existing fire alarm and detection systems shall be maintained in accordance with Section 901.7 of the California Fire Code. Site fire protection during construction shall be in accordance with Chapter 33 of the California Building and California Fire Codes.
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